UBUNTU-CVE-2026-72285

In the Linux kernel, the following vulnerability has been resolved: KVM: TDX: Reject concurrent change to CPUID entry count Reject KVMTDXINITVM if userspace changes cpuid.nent between the initial read and the subsequent copy of the initialization data. tdxtdinit first reads userdata-cpuid.nent to...

CVE-2026-72278

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Re-translate VNCR before injecting abort KVM faults in the VNCR page with FOLLWRITE whenever the guest aborts for a write, similar to how a regular stage-2 mapping is handled. It is entirely possible that the gues...

CVE-2026-72412

The CVE-2026-72412 entry concerns the Linux kernel s390/mm subsystem and the _PAGE_UNUSED (PAGE_UNUSED) PTE bit. Root cause: KVM could set the bit for unmapped guest pages; later paths could leave it set, so present pages might be treated as unused, risking guest corruption. The fix implemented i...

EUVD-2026-59311

In the Linux kernel, the following vulnerability has been resolved: s390/mm: Fix handling of PAGEUNUSED pte bit The PAGEUNUSED softbit should not really be lying around. Its sole purpose is to signal to trytounmapone and trytomigrateone that the page can be discarded instead of being moved /...

CVE-2026-72412 s390/mm: Fix handling of _PAGE_UNUSED pte bit

In the Linux kernel, the following vulnerability has been resolved: s390/mm: Fix handling of PAGEUNUSED pte bit The PAGEUNUSED softbit should not really be lying around. Its sole purpose is to signal to trytounmapone and trytomigrateone that the page can be discarded instead of being moved /...

CVE-2026-72325 perf/x86/amd/core: Avoid enabling BRS from the SVM reload path

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Avoid enabling BRS from the SVM reload path Branch Sampling BRS and Last Branch Record LBR are mutually exclusive hardware features, and users of both are tracked via cpuc-lbrusers. When SVM is toggled on a CPU...

EUVD-2026-59194

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Validate irqchip index in irqfd routing Sashiko reported that the irqchip index is not validated for LoongArch. Add validation and reject out-of-range irqchip indexes to avoid indexing past the routing table's chi...

CVE-2026-72295

Technical details (affected product/version, root cause, impact, and remediation) are not publicly available in the provided documents. Monitor for updates from official advisories.

CVE-2026-72295 LoongArch: KVM: Validate irqchip index in irqfd routing

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Validate irqchip index in irqfd routing Sashiko reported that the irqchip index is not validated for LoongArch. Add validation and reject out-of-range irqchip indexes to avoid indexing past the routing table's chi...

CVE-2026-72295 LoongArch: KVM: Validate irqchip index in irqfd routing

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Validate irqchip index in irqfd routing Sashiko reported that the irqchip index is not validated for LoongArch. Add validation and reject out-of-range irqchip indexes to avoid indexing past the routing table's chi...

CVE-2026-72294

The CVE-2026-72294 case affects the Linux kernel on LoongArch under KVM. The vulnerable component is kvm_vcpu_ioctl_interrupt() where irq validity checking was previously missing, allowing potential misvalidation when called from userspace. The root cause is insufficient validation of IRQs in the...

CVE-2026-72294 LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check irq validity in kvmvcpuioctlinterrupt Function kvmvcpuioctlinterrupt can be called from userspace, here add irq validility cheking in kvmvcpuioctlinterrupt...

EUVD-2026-59193

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check irq validity in kvmvcpuioctlinterrupt Function kvmvcpuioctlinterrupt can be called from userspace, here add irq validility cheking in kvmvcpuioctlinterrupt...

CVE-2026-72294 LoongArch: KVM: Check irq validity in kvm_vcpu_ioctl_interrupt()

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check irq validity in kvmvcpuioctlinterrupt Function kvmvcpuioctlinterrupt can be called from userspace, here add irq validility cheking in kvmvcpuioctlinterrupt...

CVE-2026-72293

In the Linux kernel CVE-2026-72293, the KVM s390 vsie path is affected: missing radix_tree_preload() in _gaccess_shadow_fault() could stall forward progress. The core of _gaccess_shadow_fault() has been split into ___gaccess_shadow_fault() to simplify locking. The fix adds the missing radix_tree_...

CVE-2026-72292 KVM: s390: Initialize KVM_S390_GET_CMMA_BITS memory

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Initialize KVMS390GETCMMABITS memory kvms390getcmmabits allocates its output buffer with vmalloc, which does not zero the returned pages: values = vmallocargs-count; In the non-peek migration path, datgetcmma reports a...

EUVD-2026-59192

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: Add missing radixtreepreload in gaccessshadowfault Add missing radixtreepreload in gaccessshadowfault to guarantee forward progress. The core of gaccessshadowfault has been split into gaccessshadowfault in order ...

CVE-2026-72293 KVM: s390: vsie: Add missing radix_tree_preload() in _gaccess_shadow_fault()

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: Add missing radixtreepreload in gaccessshadowfault Add missing radixtreepreload in gaccessshadowfault to guarantee forward progress. The core of gaccessshadowfault has been split into gaccessshadowfault in order ...

EUVD-2026-59191

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Initialize KVMS390GETCMMABITS memory kvms390getcmmabits allocates its output buffer with vmalloc, which does not zero the returned pages: values = vmallocargs-count; In the non-peek migration path, datgetcmma reports a...

CVE-2026-72292

The CVE-2026-72292 issue in the Linux kernel affects KVM on s390 where kvm_s390_get_cmma_bits() allocates its output with vmalloc(), which does not zero pages. In the non-peek migration path, dat_get_cmma() reports a byte span from the first to the last dirty page, but __dat_get_cmma_pte() only w...